I have a yahoo widget running on my work PC called Informer. What it is is a really hand tool that sits in the background telling me how much RAM and CPU is being used up in realtime. Anyway, I was just working at work (as you do) and for some reason my computer started slowing down for no reason. I took a glace at my Informer and saw that my CPU was maxed out at 100%! I checked task manager and saw that something called NMIndexStoreSvr.exe was basically eating away my CPU, my memory and my hard drive!!
I shut it down immediately (hoping it wasn't an important system resource!)
After a bit of Googling I discovered that it's part of Nero Scout that comes with Nero CD/DVD Burning 7. Nero Scout is a database program that catalogues all of the media files on your computer (music/pics/video) and that makes this database available to other programs in the Nero 7 product package. I also discovered that it's pretty safe to stop it from ever running on my PC, as I know that it's nothing important. Here's how to get rid...
Press Windows+R (Or go to the "Start" menu and click on "Run")
Then when the dialog box appears bottom left type "MsConfig", this will bring up some built in admin controls.
Click the "startup" tab
Look for the NeroCheck and NMBgMonitor and untick the box next to it
Then click Apply/Ok
Then close and select restart
When the computer restarts it will say you have used MSCONFIG to change settings just tick the box to say "Don't inform me again" and click OK and that should be problem sorted.